WebSphere Application Server PotPourri€¦ · With WebSphere Application Server Version 7 and...

© 2011, IBM Corporation 1

1 © 2011, IBM Corporation

WebSphere Application ServerPotPourri

David Follis, John Hutchinson, Mike Loos, Mike StephenIBM

August 11, 2011Session Number 9487



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Java and all Java-related trademarks and logos are trademarks of Sun Microsystems, Inc., in the United States and other countries.UNIX is a registered trademark of The Open Group in the United States and other countries.Microsoft, Windows and Windows NT are registered trademarks of Microsoft Corporation.SET and Secure Electronic Transaction are trademarks owned by SET Secure Electronic Transaction LLC.

Notes :

Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput that any user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent to the performance ratios stated here.

IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply.

All customer examples cited or described in this presentation are presented as illustrations of the manner in which some customers have used IBM products and the results they may have achieved. Actual environmental costs and performance characteristics will vary depending on individual customer configurations and conditions.

This publication was produced in the United States. IBM may not offer the products, services or features discussed in this document in other countries, and the information may be subject to change without notice. Consult your local IBM business contact for information on the product or services available in your area.

All statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only.

Information about non-IBM products is obtained from the manufacturers of those products or their published announcements. IBM has not tested those products and cannot confirm the performance, compatibility, or any other claims related to non-IBM products. Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products.

Prices subject to change without notice. Contact your IBM representative or Business Partner for the most current pricing in your geography.

CICS*DB2*GDPS*Geographically Dispersed Parallel SysplexHiperSocketsIBM*IBM eServerIBM logo*IMSOn Demand Business logo

Parallel Sysplex*RACF*System z9WebSphere*z/OSzSeries*



Disclaimer

• The information contained in this documentation is provided for informational purposes only. While efforts were many to verify the completeness and accuracy of the information contained in this document, it is provided “as is” without warranty of any kind, express or implied.

• This information is based on IBM’s current product plans and strategy, which are subject to change without notice. IBM will not be responsible for any damages arising out of the use of, or otherwise related to, this documentation or any other documentation.

• Nothing contained in this documentation is intended to, nor shall have the effect of , creating any warranties or representations from IBM (or its suppliers or licensors), or altering the terms and conditions of the applicable license agreement governing the use of the IBM software.

• Performance is based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput that any user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent to the performance ratios stated here.

• All customer examples cited or described in this presentation are presented as illustrations of the manner in which some customers have used IBM products and the results they may have achieved. Actual environmental costs and performance characteristics will vary depending on individual customer configurations and conditions.



David Follis



USS process Tag Data

• USS has an API to specify 'tag' data for a process• WAS Version 8 calls this API in all regions• Visible with the 'ps' command or 'DISPLAY OMVS,PID='• Example strings: WAS: WAS00/NDN1/BBOC001/BBOS001 - CTL-AS – HH11 0309

WAS: WAS00/WAS00/BBODMGR/BBODMGR - CTL-DM – HH1 10309

WAS: WAS00/NDN1/BBON001/BBON001 - CTL-NA – HH11 0309

WAS: WAS00/WAS00/BBODMGR/BBODMGR - SR – HH11030 9

WAS: WAS00/NDN1/WAS00/ZWASAXXX - DAEMON - HH110 309



Form Feed Controls

Trace: Blah blah Trace: Blah blah1 Trace: Blah blah Trace: Blah blah Trace: Blah blah1 Trace: Blah blah Trace: Blah blah

SYSPRINT

Form Feed

● JES2 spins output based on SEGMENT● SEGMENT defined by page count● Pages delimited by Form Feeds

● WebSphere issues Form Feeds automatically● By time

● ras_stdout_ff_interval● ras_stderr_ff_interval

● Or by volume● ras_stdout_ff_line_interval● ras_stderr_ff_line_interval

● Or, in Version 8 , on command:● MODIFY server,FORMFEED

7


John Hutchinson

● Configuring “stack_products” ● ICH408I error message suppression● Fixing shell scripts in the wrong code-page (ascii)

8


“Stack Product” Configuration ExampleWebSphere Customization Toolkit (WCT) V8

Profile Management Tool (PMT or z/PMT) V8 Configuring:• WebSphere AppServer V 8 with• WebSphere Compute Grid V 8

The WebSphere Customization Toolkit (WCT) Version 8 consists of a “Profile Management Tool” (PMT) Version 8 and the “Migration Management Tool” (MMT). There are some new features in the PMT V8.0 to enable you to create and augment a WebSphere Application Server cell with multiple Feature Packs and “Stacked Products” with a simplified set of job-streams.

In this example, WebSphere Application Server Version 8 is configured on a Deployment Manager and Managed nodes with a minimum number of panels, and a reduced set of generated customization jobs.

9


Stacked Jobs example for WASv8 & WCGv8

Stacked jobs:• Create DMgr w/ WCGv8:

BBODHFSA & BBOWWPFD

• Create EmptyNode w/ WCGv8: BBOMHFSA & BBOWWPFM

• Federate: BBOWMNAN

Non-Stacked jobs:• Create Deployment Mgr:

BBODHFSA & BBOWWPFD

• Create Empty (Managed) Node: BBOMHFSA & BBOWWPFM

• Federate: BBOWMNAN

• Augment DMgr & Empty Node: EJCJAUGM & EJCJAUGN

Notice how the “Augment” jobs for Compute Grid are run separately from the Create jobs.

(In the case of Compute Grid, they can be done before or after federation.)

10


WCT V8 Stack Products Example: BPM

… or ...

Sta

cked

---

Not

Sta

cked

Deployment Manager Configuration Jobs– BBOSBRAK – Define RACF Users & Groups– BBOSBRAM – Create Home Directories– BBODBRAK – Create RACF Profiles & Permissions– BBODCPY1 – Copy Proclib members– BBODCFS – Create zFS– BBODHFSA – Populate zFS– BBOWWPFD – Create Profiles BPZAUGD – Augment profiles with SCA, SML, SDO & WPS

Custom Node Configuration Jobs– BBOSBRAK – Define RACF Users & Groups– BBOSBRAM – Create Home Directories– BBOMBRAK – Define RACF Profiles– BBOMCPY1 – Copy Procs – BBOMCFS – Create zFS– BBOMHFSA – Populate zFS– BBOWWPFM – Create Profiles– BPZAUGN – Augment with SCA, XML, SDO & WP– BBOWMNAN – Federate Empty Node

11


Mount-points for “ stack_products ”WAS V7 & WCG V6.1.1 Product HFSes/shared /zWebSphere /V7R0 <was7_smpe_install_root>

/zWebSphereXD /V6R1M1 <wcgv6_smpe_install_root>

WCG V8 Product HFS for use w/ WAS V7/shared /zWebSphereCG /V8R0/stack_products /WCG <wcgv8_smpe_install_root>

WAS V8 with WCG V8 Product HFS (combined)/shared /zWebSphere /V8R0/ <was8_smpe_install_root>

/stack_products /WCG

WAS V8 Configuration HFS with WCGv8/wasv8config <or /wasv7config>

/cell /node <symlinks_to_was8_smpe>

/AppServer <cell_home or root> /stack_products

/WCG

Sym

bolic

Lin

ksWith WebSphere Application Server Version 7 and earlier, the Add-On or “Stacked” products such as Compute Grid and Process Server had their own SMPE-maintained HFS, and their own mount points.

The mount points for “stack products” in WAS V8, such as WCG V8, now use a “stack_products” sub-directory and reside in the same SMP/E HFS.

(WCGV8 is also supported on WAS V7, so it can be ordered/installed separately in its own HFS.)

For WAS V8 & WCGV8 in the same Configuration file systems use a single symbolic link to point to the SMPE-maintained product files.

12


ICH408I error message suppression

EJBROLEs for Compute Grid: lradmin, lrsubmitter, lrmonitor. If you are in the lradmin EJBROLE, you are not necessarily in lrmonitor EJBROLE even though users in the lradmin role have all the privileges of lrmonitor.• Users with READ access to lradmin, but not lrmonitor will receive

ICH408I error messages if that role is active.

Suppress it by setting the “Suppress authorization failed messages

from the z/OS security product ” in Global security > External authorization providers > Configure > SAF authorization options

These roles are checked to see what a user can and cannot do and set flags accordingly.

Even though a user in the lradmin role has all the privileges of lrmonitor, the above call to check the lrmonitor role will generate an ICH408I msg.

13


Fixing shell scripts w/ code page problems

Sometimes shell scripts (or other files) are in the wrong code-page.• (Maybe they were copied from a non-z/OS environment?)

The Notes page of this foil contains a sample shell script to:• Search for all .sh files in the designated directory,• Test to see if they are in the wrong code-page (ascii)• Converts them to EBCDIC, • Sets the permission bits to 755.

#!/bin/sh# This shell script will convert all .sh shell scri pts in a directory and all# sub-directories from ascii to ebcdic.# THIS TOOL IS PROVIDED "AS IS" WITHOUT ANY SUPPORT OR WARRANTY OF ANY KIND, # EXPRESS OR IMPLIED. BY USING THESE SCRIPTS YOU EX PRESSLY ACKNOWLEDGE # AND AGREE THAT THE USE OF THESE SCRIPTS IS AT YOU R SOLE RISK. # NEITHER THE AUTHOR NOR THE IBM CORPORATION CAN BE HELD LIABLE FOR ANY ERRORS # OR OTHER CONDITIONS OF ANY KIND WHICH MIGHT ARISE FROM THE USAGE OR THE OUTPUT# OF THESE SCRIPTS. THESE SCRIPTS MAY BE USED BY AN YONE AT HIS/HER OWN RISK! if [[ -z $1 ]]then echo "Usage is fixsh.sh directory_name" exit 1fidirectory=$1if [[ ! -d $directory ]]then echo "Directory $directory is not valid" exit 1fiflag="23"for script in `find $directory -name "*.sh"`do# echo $script od -An -tx1 $script | grep "23" >/dev/null if [ $? -eq 0 ]; then echo "Converting " $script iconv -f ISO8859-1 -t IBM-1047 <$script > /tmp/ tmp_xlate && \ cp /tmp/tmp_xlate $script chmod 755 $script else echo "Not ASCII: " $script fidoneexit 0

14


IBM Product Information CentersDo you have difficulty finding InfoCenters for various (WebSphere) Products? Here are a couple of suggestions:1) Keep your own set of Bookmarks in a document on your desktop:

2) Use the “IBM Support Portal" at

ibm.com/support/entry/portal/Overview

3) Use the "IBM Product Information Center" at

ibm.com/support/publications/us/library/#software



Mike Loos



Changing MQ_INSTALL_ROOT

● A change to variable MQ_INSTALL_ROOT or● A change to the path pointed to by it.

● Causes requirement to start server twice.● To avoid the second server restart...

● APAR PK57900 (7.0.0.1)● New variable:

MQ_CLEAR_MQ_FROM_OSGI_CACHE_ON_SHUTDOWN● Set to True.

ERROR DESCRIPTION: (from APAR PK57900)

If an external WebSphere MQ installation pointed to by

MQ_INSTALL_ROOT is updated while application servers are

stopped, and that update contains a change to the number of

Java or native libraries included in the WebSphere MQ JMS

client (or the MQ_INSTALL_ROOT itself is changed), application

servers may log WMSG1612E or WMSG1614E messages during

startup. When an application attempts to lookup a WebSphere MQ

JNDI resource it is thrown an exception with message WMSG2002E

or WMSG2003E.

A second restart of the application servers is required in

order for applications to be able to lookup WebSphere MQ

messaging provider JNDI resources and perform messaging.

LOCAL FIX:

Manually run osgiCfgInit between shutdown and startup of the

application server.



FRCA Caching from the Control Region

● Two methodologies:● By application.

● Each application sets up a cachespec.xml file and includes it in its WEB-INF directory.

● Globally.● One cachespec.xml file included in the

/wasv8config/s8cell/s8nodea/AppServer/profiles/default/properties directory.

● Set up for the server is the same in either case.



FRCA Caching Server Setup




Click OK. Save and Synchronize.

FRCA Caching, cachespec.xml

This cache-entry in the cachespec.xml will cache AL L static content in FRCA

<?xml version="1.0" ?><!DOCTYPE cache SYSTEM "cachespec.dtd"><cache>  <cache-entry> <class>static</class> <name>com.ibm.ws.webcontainer.servlet.SimpleFil eServlet.class</name> <cache-id> <component id="" type="pathinfo"> <required>true</required> </component> <timeout>300</timeout> </cache-id> <property name="ExternalCache">FRCA</prope rty> </cache-entry></cache>

This entry must match the External Cache Group

name.



Mike Stephen



Speaking of FRCA

APAR PM43864

OOM UNDER HEAVY LOAD WITH SERVLET CACHING ENABLED AND FRCA DISABLED

If servlet caching is enabled but FRCA is disabled or misconfigured, the controller region may abend under heavy load with an OOM. An examination of the JVM heap will show many leaked byte arrays which are filled with HTTP response text.

Fix expected in 7.0.0.21 and 8.0.0.2 (January, 2012)



GA End of Marketing End of Support

Version 6.0 3/25/2005 2/23/2009 9/30/2010

Version 6.1 6/30/2006 7/25/2011 9/30/2012

Version 7 9/26/2008

Version 8 6/17/2011

Versions, Dates, and Service Levels...Versions, Dates, and Service Levels...

● End of Service announced for V6.1

● GA of Version 8

● Service level naming convention change:● V6.1 and V7 – even numbers z/OS only, odd numbers common● V8 – all levels are common (no more z/OS only levels)



Wrapup



WebSphere Application Server Sessions

Day Time # Title Speaker Room

Wednesday 3:00 9483 Using IBM's New Cross-Platform Installer on z/OS

Mierzejewski Oceanic 5

Thursday 8:00 9482 WAS Version 8 – Overview Follis Europe 2

Thursday 9:30 9486 WAS Version 8 – Batch Update Hutchinson Europe 2

Thursday 11:00 9485 WAS Version 8 – New z/OS Exploitation/Differentiation Features

Follis Europe 2

Thursday 1:30 9484 WAS Version 8 – High Availability Enhancements

Follis Europe 2

Thursday 3:00 9488 WAS - Back to Basics Part 1 Loos Europe 2

Thursday 4:30 9489 WAS - Back to Basics Part 2 Stephen Europe 2

Friday 8:00 9490 WAS for z/OS - Level 2 Update Stephen Europe 2

Friday 9:30 9487 WAS for z/OS – PotPourri Follis, Hutchinson, Loos, Mierzejewski, Stephen, etc.

Europe 2



Comments? Suggestions?

• Was this a good set of sessions?• What did you like?• What did you not like?• Should we repeat these next time or consolidate?• Should we keep the 'back to basics' sessions?• Any sessions you would like to see?• Any suggestions for the lab?



• Anyone else care to share any WAS on z/OS experiences?

• Any questions about anything?

• Any final suggestions/complaints/comments?

• Anything? Anybody?

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